Practice Questions with complete solution 2025
1. Which validities can we try to maximize for all types of statistical
and construct
claims? Select all that apply
- Internal
- Statistical
- External
- Construct
2. After a study reported that taking notes by You are
hand im- proved memory retention for video intrigued and
materials in a laboratory experiment, a decide to
researcher decided to see whether the effect manipulate
would generalize to psychology course sleep qual-
lectures. In his new study, he surveyed students ity by
in introductory psychology classes about how having
they take notes, and examined the college
relationship between their note-taking students
method and final exam score. The change in come to a
study design reflects a decrease of lab to sleep
validity, and an increase in validity. there for
two weeks.
- external; statistical One group
- external; internal sleeps in a
- statistical; internal room
- internal; external optimized
for good
3. You read about a study reporting an
sleep (no
association be- tween sleep quality and
screens
anxiety. The study found an association
allowed,
between these two variables by surveying
cool
college students to measure their self-reported
sleep quality and their self-reported anxiety.
,Psy 2811: Research Methods and Data Analysis Exam 1
Practice Questions with complete solution 2025
internal; external
external; internal
,Psy 2811: Research Methods and Data Analysis Exam 1
Practice Questions with complete solution 2025
temperatures) and another sleeps in a hot
room with distracting screens. This design
improves the ability to control variables
affecting sleep like ambient noise and light and
temperature. However, only 2% of the college
students invited decide to participate because
they don't want to sleep in a lab. The change
in study design reflects a decrease of
validity, and an increase in
validity.
- statistical; external
- internal; statistical
- external; internal
- internal; external
4. Research scenario 1: Rob and his friends are discussing external
validity
a study he read about in a news release on
the Sci- entific American website. In the news
release, the re- searcher is quoted as making
the claim that more screen time is related to
poorer reading among ele- mentary school
children. In the study, they surveyed children
from local private schools by asking how
many hours of TV they watch on the
weekends and found that more TV hours was
related to poorer read- ing test scores.
Emily questions the claim, saying, "I think their
re- sults are limited by only including children
from private schools." Emily's concern is
addressing which of the following?
, Psy 2811: Research Methods and Data Analysis Exam 1
Practice Questions with complete solution 2025
- internal validity
- external validity